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文件名称：《新医科大学英语》电子版教师用书-Unit 2.docx
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更新时间：2025-09-05
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Unit2GuardiansofpublichealthUnitoverview
Publichealthsecurityisessentialforoursurvivalandprogress.However,theworldnowfacesintertwinedpublichealththreats.Overthepastdecades,humanityhasexperiencednovelandincreasinglyfrequentemergingandre-emerging